DETERGENT COMPOSITION

Japanese Patent JP3872116

B2

PURPOSE: To provide a detergent compsn. which can enhance the capability of cleaning pistons within internal combustion engines by including a specified alkaline earth metal hydrocarbyl phenate.
CONSTITUTION: This detergent compsn. comprises: (A) an additive concentrate comprising (i) a lubricating oil and (ii) a lubricating oil soluble (non) sulphurized alkaline earth metal hydrocarbyl phenate modified by a reaction to incorporate, in an amt. of 2 to 40 (wt)% based on the wt. of the concentrate (component A), either (a) at least one carboxylic acid represented by the formula (wherein R represents a 10-24C alkyl or alkenyl; and R1 represents H, a 1-4C alkyl, -CH2-COOH or an anhydride or ester thereof) or (b) a 36-100C di- or polycarboxylic acid or an anhydride or ester thereof, the concentrate pref. having a BN greater than 300 and a viscosity at 100°C of less than 1,000 cSt,; and (B) an additive concentrate comprising the component i and the phenate which has not been modified or has been modified by a reaction to incorporate, in an amt. of less than 0.1% based on the wt. of the concentrate (component B), the component ii (component a or b), the additive concentrate pref. having a BN of less than 300.

Stephen James Cook
Sean Patrick O'Corner
John Crawford

JP201995A

January 24, 2007

January 10, 1995

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BP CHEMICALS (ADDITIVES) LIMITED

C10M159/22; C10N10/04; C10N20/00; C10N20/02; C10N30/04; C10N40/25; C10N60/00; C10N70/00; (IPC1-7): C10M159/22; //(C10M159/22; C10M129:24; C10M129:10; C10M129:40; C10M129:42; C10M129:76; C10M129:91; C10M129:93; C10M129:95; C10M135:30); C10N20:00; C10N20:02; C10N30:04; C10N40:25; C10N60:00; C10N70:00

JP1501399A
JP1501400A
JP2248495A
JP234690A
JP388893A
JP606790A
JP60101196A

WO1993003121A1

Haruo Hamada

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